Guard for electric heaters



Feb. 3.1927.

F. D. PITT ET AL GUARD FOR ELECTRIC HEATERS Filed Dec.' 7. 1925 a INVENTQRS view of a portion of one of TION OF MISSOURI.

- time GUARD FOR ELECTRIC Application. filed December 7, Q1925. Serial No; 73,698.

Our invention relates to a guard for electric V heaters or the like, and moreparticularly to V a device of that character for protecting the heater elementi rom damage by contact with 5 exterior objects, and persons or articles from injury or damage by contact with the heater element, thegprincipal object of the invention being to provide a guard of that kind which is simple and economical in construction and assembly and in-which the parts are more securely connected than are those of the guards in ordinary use. 7

In accomplishing'this objectwehave provided improved details of structure, the preaccompanying drawings wherein heater equipped. with a our improvements. I I

Fig; 2. is anenlarged, vertical section'of the guard, illustrating its mounting onthe heater body, parts of the body being in section. 1 g 1; a j

3 is an enlarged detail perspective 'gniarcl...v w i s I Fig. 4 is asimilar view, showing frameelements in place on the ri 5fis a similarview showing the anchorage of the frame member. 7

Fig. 6 is an enlarged side elevation of a part oi one of the ribs, illustrating the mounting of the frame members therein. v.

Refening more in detail'to the drawings, 1 designates the base and Q the body member of an electric heater of any suitable construct-ion, the body member having ears 0 by'which it ispivotally mounted on the-base v V *andthe first convolution are seated in the by a bolt 4 and wing nut, whereby the body the directionof flow of heated air within a room ,or space servedby the heater. The body 2 is preferably of sheet metal construction, spun or'otherwi'se shaped 'toconcavoconvex formation and having a peripheral, inturned flange 5 spaced from the body 7 proper to provide an inwardly opening seat 6, the "face of the body member being lined with a reflecting surface 7 whereby heat raysemanating from a heat ng element, presently described, are. deflected through the open front of the heater. Y

Located centrally of the body member and in spaced relation to the deflector 7 a heat-,

' ferred forms of'which are illustrated in the,

the ribs of the:

guard for the heater element.

may be locked at various angles to adjust tension of the wire 'iorcingthe same longitudinally in the slot'to frictionally lock the 3 wire to the rib. To insure the locking action [wepreferably undercut thesl'ot at both ends the terminals ll and 12 of which. extend FREDERICK :0. PITT Ann ARTHUR os'rnnnoo, or KANSAS CITY, rarssounr,

fro- HE ANDERSON-PITT conrosnr on, or KAnsAs orrY;

Ass enons Missounr, A CORPORA-' through the body member for connection,

with the line wires of a lighting systeinr Our improved ments above described, comprises curved ribs 13 of heavy sheet or lightbar metal, each having a notch 14 in its outer, edge near one end, to seat the end, or the rib within the body seat6 and having spaced notches 15 in its nner edgetor seatingthe frame memhers-l6.

The frame men form the concave-convexguard,-frame, the

guard construction adapted foruse with theheater embodyingithe elee bers 16 are preferablycon volutions ot a sinqlepiece of wire coiledto convolutions beingspaced .to seat the wire members. While any suitable numben of ribs may be employed,.we prefer to use four,

the guard.

With this. arrangement of the parts, the

frame'member is spiralled in, convolutions of gradually increasing diameter, and the,

frame dished toaform a concayo-convei;

" In assembling the guard, the ribs are pref to maintain their proper spacing, -and the the respective ribs, one of the ribs having an elongated, undercutslot 17 adapted to seat two strands'of the wire so that'when the coiling is begun, the free end of the wire slot 17 and one looks the other, the spring so that after thewire has been projected wire from the slot.

.l/Vhen the wire has been anchored as described, the convolution's are successively located in the rib notches and the'material at the edge of the ribs peaned over witha chisel within "the notches 15 of. the, respective rib,

"so I erably seatedin a die (not sliow nyinorder .wirefspiralled and seated in ithe notches in;

or other tool to lock the wire in the notches 15. A bifurcated chisel blade. maybe employedto strike the lips 19' and 20 in the ribs simultaneously and eiiect the peaning with one operation of the tool.

The guard, assembled in thisimanner, is applied bodily to the body 2 of the heater, the ribs being sprung back to enable the notched'portions 14'. to seat Within the body;

slot 2, resiliency of the frame ire tending to spread the guard to maintain theribs-in their seats When all are in place.

It is apparent that with this construction,

use of frame-rings of different diameters is avoided, that the guard elements may be easily and quickly assembled, and'securely and permanently associated, and that the guard may be securely but removablyapplied tothe body of the heaten What We claim and desire to=secure by LettersPatent is 1. A guard-of the character describech' comprising spaced ribs havmgedge notches and frame members seated wvithin the notches, theedges of the ribs being peaned over the frame members to lock the parts-t ogethe-r.

124A guard of the character described,-

7 comprising ribs having spaced edge notches,

aspiralled Wire having its convolutions seated 1n the rib notches, the edges of the lllOS adjacent-the notches being peaned over the "Wireto-hold the Wire to the ribs.

3. A guard of the characterdescribed,

' comprising spaced, similarly curved ribs havingspaced notchesin their inner edges 1 and a spiralled Wire having its convolutions seated in corresponding rib notches, the edges of the r1bs bemg peaned over the: con- 'volutes of the Wire.

forman undercut slot, a spiralled Wire hav-' mg the mner. end of lts first convolution seated in said undercut slot, and the successive convolutions of the Wire seated in corresponding notches of the respective ribs, the edges of the ribs beingpeaned over the wire to lock theparts together.- a c 5. A guard of the characten described comprising spaced, curved ribs having correspondingly spacednotches in their inner edges, and a frame Wire spiralled and seated in the ribnotches, the edges of the ribs being peaned over the Wire to together, the'ribs having notches-in their outer edges adjacent their outer ends for seating in the seat in a body member to hold the guard to the body member. 7 5

comprising -a concavo convex body consist 111g of spaced ribs having spaced, transverse notches intheir inner edges and a Wire spi-c ralled andseated in said notches;

7. A" guard of the character descriliied comprising a concave-convex body consisting oi: spaced ribs having-spaced, transverse notches injtheir inner edges and a" Wire Fpiralled and seatedinsaid notches, the ribs havin transverse notches in their outer edge-s near their outer ends for receiving a flange on a-carry1ng body to mount-the guard on the carrying body.

8. A guard comprising a body 'consistlng of spaced ribs having notches in their inner edges, one of' the notches being enlarged in two directions at its base to form a double, under-cut slot,-

FREDE'RIGK- D. PITT; ARTHUR OSTERL'OO.

lock the parts a or" the character described 6: A guard of the character described whereof'ive afiix our signa- 

